diff options
Diffstat (limited to 'drivers/staging/hv/include/vmbus.h')
| -rw-r--r-- | drivers/staging/hv/include/vmbus.h | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/drivers/staging/hv/include/vmbus.h b/drivers/staging/hv/include/vmbus.h new file mode 100644 index 000000000000..32405788cd4c --- /dev/null +++ b/drivers/staging/hv/include/vmbus.h @@ -0,0 +1,111 @@ +/* + * + * Copyright (c) 2009, Microsoft Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program; if not, write to the Free Software Foundation, Inc., 59 Temple + * Place - Suite 330, Boston, MA 02111-1307 USA. + * + * Authors: + * Haiyang Zhang <haiyangz@microsoft.com> + * Hank Janssen <hjanssen@microsoft.com> + * + */ + + +#ifndef _VMBUS_H_ +#define _VMBUS_H_ + +#include <linux/device.h> + +#include "VmbusApi.h" + +// +// Data types +// + +typedef int (*PFN_DRIVERINITIALIZE)(DRIVER_OBJECT *drv); +typedef int (*PFN_DRIVEREXIT)(DRIVER_OBJECT *drv); + +struct driver_context { + GUID class_id; + + struct device_driver driver; + + // Use these methods instead of the struct device_driver so 2.6 kernel stops complaining + int (*probe)(struct device *); + int (*remove)(struct device *); + void (*shutdown)(struct device *); +}; + +struct device_context { + struct work_struct probe_failed_work_item; + GUID class_id; + GUID device_id; + int probe_error; + struct device device; + DEVICE_OBJECT device_obj; +}; + + +// +// Global +// + +// +// Inlines +// +static inline struct device_context *to_device_context(DEVICE_OBJECT *device_obj) +{ + return container_of(device_obj, struct device_context, device_obj); +} + +static inline struct device_context *device_to_device_context(struct device *device) +{ + return container_of(device, struct device_context, device); +} + +static inline struct driver_context *driver_to_driver_context(struct device_driver *driver) +{ + return container_of(driver, struct driver_context, driver); +} + +#if defined(KERNEL_2_6_5) +static inline void* kzalloc(int size, int flags) +{ + void *p; + p = kmalloc(size, flags); + if (p) memset(p, 0, size); + + return p; +} +#endif // KERNEL_2_6_5 + +// +// Vmbus interface +// +void +vmbus_child_driver_register( + struct driver_context* driver_ctx + ); + +void +vmbus_child_driver_unregister( + struct driver_context *driver_ctx + ); + +void +vmbus_get_interface( + VMBUS_CHANNEL_INTERFACE *interface + ); + +#endif // _VMBUS_H_ |